EP0547522B2 - Drum brake, especially parking brake for motor vehicle - Google Patents

Drum brake, especially parking brake for motor vehicle Download PDF

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Publication number
EP0547522B2
EP0547522B2 EP92121146A EP92121146A EP0547522B2 EP 0547522 B2 EP0547522 B2 EP 0547522B2 EP 92121146 A EP92121146 A EP 92121146A EP 92121146 A EP92121146 A EP 92121146A EP 0547522 B2 EP0547522 B2 EP 0547522B2
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EP
European Patent Office
Prior art keywords
brake
drum
fixing screws
brake shoes
drum brake
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP92121146A
Other languages
German (de)
French (fr)
Other versions
EP0547522B1 (en
EP0547522A1 (en
Inventor
Rolf Weiler
Claus-Peter Panek
Erhard Czich
Jürgen Musolf
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ITT Automotive Europe GmbH
Original Assignee
ITT Automotive Europe GmbH
Alfred Teves GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Application filed by ITT Automotive Europe GmbH, Alfred Teves GmbH filed Critical ITT Automotive Europe GmbH
Publication of EP0547522A1 publication Critical patent/EP0547522A1/en
Publication of EP0547522B1 publication Critical patent/EP0547522B1/en
Application granted granted Critical
Publication of EP0547522B2 publication Critical patent/EP0547522B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T1/00—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles
    • B60T1/02—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels
    • B60T1/06—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels acting otherwise than on tread, e.g. employing rim, drum, disc, or transmission or on double wheels
    • B60T1/067—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels acting otherwise than on tread, e.g. employing rim, drum, disc, or transmission or on double wheels employing drum
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D51/00—Brakes with outwardly-movable braking members co-operating with the inner surface of a drum or the like
    • F16D51/16—Brakes with outwardly-movable braking members co-operating with the inner surface of a drum or the like shaped as brake-shoes pivoted on a fixed or nearly-fixed axis
    • F16D51/18—Brakes with outwardly-movable braking members co-operating with the inner surface of a drum or the like shaped as brake-shoes pivoted on a fixed or nearly-fixed axis with two brake-shoes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/02—Braking members; Mounting thereof
    • F16D65/04—Bands, shoes or pads; Pivots or supporting members therefor
    • F16D65/08—Bands, shoes or pads; Pivots or supporting members therefor for internally-engaging brakes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D51/00—Brakes with outwardly-movable braking members co-operating with the inner surface of a drum or the like
    • F16D2051/001—Parts or details of drum brakes
    • F16D2051/003—Brake supports

Definitions

  • the invention relates to a drum brake, preferably a mechanically operated parking brake for motor vehicles with respect to their radial Installation dimensions have a compact design. according to the preamble of claim 1.
  • Such a drum brake is for example known from US 3,850,266.
  • This well-known Drum brake has a brake carrier on the brake shoes and an actuator wearing.
  • the brake carrier is by means of fastening screws on the steering knuckle of the vehicle attached, with the mounting screws parallel to the wheel axle and from the outside of the vehicle can be screwed inwards. This screwing direction is generally preferred because of assembly the brake on the vehicle is relieved, if the screws are accessible from the outside are.
  • drum brakes which is only used as a parking brake or in an emergency to save weight to be as small and compact as possible.
  • wheel bearing hubs enlarge driven axles in diameter. Because the one taken up by the wheel bearing hub Space not as installation space for the drum brake is available, one must be in conventional Way built drum brake inevitably enlarged in diameter to the same extent become like the wheel bearing hub.
  • GB-A-950 530 discloses a generic one Drum brake where it is in a different context is known in a substantially parallel to one Brake shoe web extending a large area Provide opening. Such an opening is intended to enable are otherwise covered by the brake shoe web To make the screw in the brake carrier accessible for assembly.
  • the screw in the brake carrier accessible for assembly.
  • this makes the web strength unnecessarily strong or impaired the strength of the entire brake shoe.
  • the object of the invention is a generic drum brake with radially limited installation dimensions, with regard to to improve the mountability, so that the drum brake especially as a pre-assembled unit from the brake manufacturer can be delivered to the vehicle manufacturer.
  • the drum brake shown in Fig. 1 has a brake carrier 1, which consists of a substantially annular support plate 2 and one essentially sickle-shaped reinforcing element 3 exists.
  • a wheel bearing hub 4 is arranged, through the interior of the brake extends.
  • a wheel bearing In the interior 5 of the wheel bearing hub 4 a wheel bearing, not shown, and one not shown Wheel axle arranged.
  • Two brake shoes 6.7 are by means of resilient elements 8 on the carrier plate 2 slidably attached.
  • the brake shoes 6,7 are each radially inward on the wheel axis to extend web 9, a extending in the circumferential direction, perpendicular to the web 9 arranged lining carrier sheet 10 and built up a friction lining 11.
  • a spreader lock 12 is provided for the drum brake, that on the brake carrier 1 between two in the circumferential direction opposite end faces 13.14 of the brake shoes 6.7 is arranged.
  • the parking brake becomes the brake shoes 6.7 through the expansion lock 12 to the outside pressed until it touches an inner friction surface Brake rotor, not shown, abut.
  • the friction force occurring when braking is over one of the end faces 13, 14 of the brake shoes 6.7 transferred to the reinforcing element 3.
  • the brake carrier 1 is by means of four screws 15 attached to the steering knuckle flange 16 of the vehicle.
  • the screws 15 extend parallel to the wheel axle and are from the outside of the vehicle screwed in here.
  • the fastening screws 15 are in a radially outer area arranged the drum brake over which also extend the webs 9 of the brake shoes 6,7. To tighten the fastening screws 15 to enable the webs 9 with openings 17th provided for the passage of a screwing tool.
  • the screw heads 18 have a larger one
  • the screw heads 18 have a hexagonal Recess 19 for engagement by a Is determined.
  • the fastening screws 15 and the associated openings 17th are evenly spaced in the circumferential direction and arranged mirror-symmetrically.
  • the Openings 17 lie in areas of the webs 9 by the forces occurring when braking not be heavily used.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Braking Arrangements (AREA)

Description

Die Erfindung betrifft eine Trommelbremse, vorzugsweise eine mechanisch betätigte Feststellbremse für Kraftfahrzeuge, die bezüglich ihrer radialen Einbaumaße eine kompakte Bauart aufweist. gemäß dem Oberbegriff des Patentanspruchs 1.The invention relates to a drum brake, preferably a mechanically operated parking brake for motor vehicles with respect to their radial Installation dimensions have a compact design. according to the preamble of claim 1.

Eine derartige Trommelbremse ist beispielsweise aus der US 3,850,266 bekannt. Diese bekannte Trommelbremse weist einen Bremsträger auf, der die Bremsbacken und eine Betätigungsvorrichtung trägt. Der Bremsträger ist mittels Befestigungsschrauben am Achsschenkel des Fahrzeugs befestigt, wobei die Befestigungsschrauben parallel zur Radachse und von der Fahrzeugaußenseite her nach innen einschraubbar sind. Diese Schraubrichtung wird im allgemeinen bevorzugt, weil die Montage der Bremse am Fahrzeug erleichtert wird, wenn die Schrauben von der Außenseite her zugänglich sind. Bei der bekannten Trommelbremse sind die Befestigungsschrauben in radialer Richtung innerhalb der Bremsbacken neben einer zum Durchgang der Radachse bestimmten Öffnung des Bremsträgers angeordnet.Such a drum brake is for example known from US 3,850,266. This well-known Drum brake has a brake carrier on the brake shoes and an actuator wearing. The brake carrier is by means of fastening screws on the steering knuckle of the vehicle attached, with the mounting screws parallel to the wheel axle and from the outside of the vehicle can be screwed inwards. This screwing direction is generally preferred because of assembly the brake on the vehicle is relieved, if the screws are accessible from the outside are. In the well-known drum brake are the fastening screws in the radial direction inside the brake shoes next to one for Passage of the wheel axis specific opening of the Brake carrier arranged.

Man ist allgemein bestrebt, Trommelbremsen, die nur als Feststellbremse oder im Notfall verwendet werden, aus Gründen der Gewichtsersparnis möglichst klein und kompakt zu gestalten. Andererseits gibt es eine Tendenz, die Radlagernaben angetriebener Achsen im Durchmesser zu vergrößern. Da der von der Radlagernabe eingenommene Raum nicht als Einbauraum für die Trommelbremse zur Verfügung steht, muß eine in herkömmlicher Weise aufgebaute Trommelbremse zwangsläufig in ihrem Durchmesser im gleichen Maß vergrößert werden wie die Radlagernabe.One generally strives to drum brakes, which is only used as a parking brake or in an emergency to save weight to be as small and compact as possible. On the other hand there is a tendency to the wheel bearing hubs enlarge driven axles in diameter. Because the one taken up by the wheel bearing hub Space not as installation space for the drum brake is available, one must be in conventional Way built drum brake inevitably enlarged in diameter to the same extent become like the wheel bearing hub.

Darüber hinaus offenbart die GB-A-950 530 eine gattungsgemäße Trommelbremse, bei der es in einem anderem Zusammenhang bekannt ist in einem im wesentlichen parallel zu einem Bremsträger verlaufenden Bremsbackensteg eine großflächige Öffnung vorzusehen. Durch eine derartige Öffnung soll ermöglicht werden eine ansonsten vom Bremsbackensteg verdeckte Schraube im Bremsträger für eine Montage erreichbar zu gestalten. Um allerdings eine solche freie Erreichbarkeit der Schraube für ein Montagewerkzeug umzusetzen, ist es erforderlich die Öffnung im Bremsbackensteg unerwünscht groß auszulegen. Damit wird jedoch in unnötig starkem Maße die Stegfestigkeit bzw. die Festigkeit der gesamten Bremsbacke beeinträchtigt. Des weiteren erweist es sich als schwierig, die Schrauben während der Montage durch die Öffnungen im Bremsbackensteg in den Bremsträger einzuführen.In addition, GB-A-950 530 discloses a generic one Drum brake where it is in a different context is known in a substantially parallel to one Brake shoe web extending a large area Provide opening. Such an opening is intended to enable are otherwise covered by the brake shoe web To make the screw in the brake carrier accessible for assembly. However, in order to ensure that the It is necessary to implement the screw for an assembly tool to make the opening in the brake shoe web undesirably large. However, this makes the web strength unnecessarily strong or impaired the strength of the entire brake shoe. Furthermore, it turns out to be difficult the screws during assembly through the openings in the Insert the brake shoe web into the brake carrier.

Aufgabe der Erfindung ist es, eine gattungsgemäße Trommelbremse bei radial begrenzten Einbaumaßen, hinsichtlich der Montierbarkeit zu verbessern, so daß die Trommelbremse insbesondere als vormontierte Einheit vom Bremsenhersteller an der Fahrzeughersteller geliefert werden kann.The object of the invention is a generic drum brake with radially limited installation dimensions, with regard to to improve the mountability, so that the drum brake especially as a pre-assembled unit from the brake manufacturer can be delivered to the vehicle manufacturer.

Die Lösung der Aufgabe ergibt sich aus dem kennzeichnenden Teil des Patentanspruchs 1.The solution to the problem arises from the characterizing part of claim 1.

Aus Gründen der leichten Montierbarkeit ist es somit vorgesehen, daß die Schraubenköpfe der Befestigungsschrauben einen größeren Außendurchmesser aufweisen als die kleinste Weite der zugehörigen Öffnung im Steg der Bremsbacke. Diese Anordnung hat den Vorteil, daß die erfindungsgemäße Bremse vom Bremsenhersteller als vormontierte Einheit an den Fahrzeughersteller geliefert werden kann. Bei der Fertigung der Bremse werden die Befestigungsschrauben zuerst durch dafür vorgesehene Öffnungen des Bremsträgers gesteckt und danach die Bremsbacken auf den Bremsträger montiert. Bei der fertig montierten Bremse sind die Schraubenköpfe der Befestigungsschrauben zwischen dem Bremsträger und den Stegen der Bremsbacken zwar locker, aber unverlierbar eingeschlossen. Die Weite der Öffnungen in den Stegen ist so gering, daß die Schraubenköpfe nicht hindurchpassen. Die geringe Weite der Öffnungen hat den weiteren Vorteil, daß das Material der Stege nur in sehr geringem Maß geschwächt wird.So it is easy to assemble provided that the screw heads the fastening screws have a larger outside diameter have as the smallest width the associated opening in the web of the brake shoe. This arrangement has the advantage that the invention Brake from the brake manufacturer as pre-assembled unit delivered to the vehicle manufacturer can be. When manufacturing the brake the fastening screws through first provided openings of the brake carrier and then put the brake shoes on the Brake carrier mounted. When fully assembled The brakes are the screw heads of the fastening screws between the brake carrier and the webs of the brake shoes loose, but captively included. The width of the openings in the webs is so small that the screw heads don't fit through. The small width of the openings has the further advantage that the Material of the webs weakened only to a very small extent becomes.

Vorzugsweise sind die zum Durchgang eines Schraubwerkzeugs bestimmten Öffnungen gemäß Anspruch 2 in den Bereichen der Stege angeordnet, die von den beim Bremsen auftretenden Kräften nicht stark beansprucht werden. Aufgrund dieser Maßnahme wird die Steifigkeit der Stege nur unwesentlich beeinflußt, so daß die Stärke der Stege nicht vergrößert werden muß.They are preferably one for passage According to certain openings Claim 2 arranged in the areas of the webs, the forces occurring when braking not be heavily used. Based on these Measure the rigidity of the webs only insignificantly influenced, so that the strength of the webs does not have to be enlarged.

In einer bevorzugten Ausgestaltungform der Erfindung gemäß Anspruch 3 sind vier Befestigungsschrauben vorgesehen, die symmetrisch und in Umfangsrichtung gleichmäßig verteilt sind. Dadurch wird ein guter Kompromiß zwischen einer einfachen und einer sicheren Befestigung der Bremse am Fahrzeug erzielt.In a preferred embodiment of the invention according to claim 3 are four mounting screws provided that symmetrical and in Circumferential direction are evenly distributed. Thereby will be a good compromise between a simple one and a secure attachment of the brake achieved on the vehicle.

Ein Ausführungsbeispiel der Erfindung wird nachfolgend anhand der Zeichnungen näher erläutert.An embodiment of the invention will explained below with reference to the drawings.

Es zeigen

Fig, 1
eine teilweise geschnittene Draufsicht auf eine erfindungsgemäße Trommelbremse;
Fig. 2
einen Schnitt gemäß Linie A-A von Fig. 1.
Show it
Fig. 1
a partially sectioned plan view of a drum brake according to the invention;
Fig. 2
a section along line AA of FIG. 1st

Die in Fig. 1 dargestellte Trommelbremse weist einen Bremsträger 1 auf, der aus einem im wesentlichen kreisringförmigen Trägerblech 2 und einem im wesentlichen sichelförmigen Verstärkungselement 3 besteht. In einer zentralen Öffnung des Trägerblechs 2 ist eine Radlagernabe 4 angeordnet, die sich durch den Innenraum der Bremse erstreckt. Im Innenraum 5 der Radlagernabe 4 ist ein nicht gezeigtes Radlager und eine nicht gezeigte Radachse angeordnet. Zwei Bremsbacken 6,7 sind mittels federnden Elementen 8 am Trägerblech 2 verschiebbar befestigt. Die Bremsbacken 6,7 sind jeweils aus einem sich radial nach innen auf die Radachse zu erstreckenden Steg 9, einem in Umfangsrichtung sich erstreckenden, senkrecht zum Steg 9 angeordneten Belagträgerblech 10 und einem Reibbelag 11 aufgebaut. Zur Betätigung der Trommelbremse ist ein Spreizschloß 12 vorgesehen, das am Bremsträger 1 zwischen zwei in Umfangsrichtung gegenüberliegenden Endflächen 13,14 der Bremsbacken 6,7 angeordnet ist. Bei Betätigung der Feststellbremse werden die Bremsbacken 6,7 durch das Spreizschloß 12 nach außen gedrückt, bis sie an einer inneren Reibfläche eines nicht gezeigten Bremsenrotors reibend anliegen. Die beim Bremsen auftretende Reibkraft wird über eine der Endflächen 13,14 von den Bremsbacken 6,7 auf das Verstärkungselement 3 übertragen.The drum brake shown in Fig. 1 has a brake carrier 1, which consists of a substantially annular support plate 2 and one essentially sickle-shaped reinforcing element 3 exists. In a central opening of the Carrier plate 2, a wheel bearing hub 4 is arranged, through the interior of the brake extends. In the interior 5 of the wheel bearing hub 4 a wheel bearing, not shown, and one not shown Wheel axle arranged. Two brake shoes 6.7 are by means of resilient elements 8 on the carrier plate 2 slidably attached. The brake shoes 6,7 are each radially inward on the wheel axis to extend web 9, a extending in the circumferential direction, perpendicular to the web 9 arranged lining carrier sheet 10 and built up a friction lining 11. To operate the A spreader lock 12 is provided for the drum brake, that on the brake carrier 1 between two in the circumferential direction opposite end faces 13.14 of the brake shoes 6.7 is arranged. At Applying the parking brake becomes the brake shoes 6.7 through the expansion lock 12 to the outside pressed until it touches an inner friction surface Brake rotor, not shown, abut. The friction force occurring when braking is over one of the end faces 13, 14 of the brake shoes 6.7 transferred to the reinforcing element 3.

Der Bremsträger 1 ist mittels vier Schrauben 15 am Achsschenkelflansch 16 des Fahrzeugs befestigt. Die Schrauben 15 erstrecken sich parallel zur Radachse und sind von der Fahrzeugaußenseite her nach innen eingeschraubt. Die Befestigungsschauben 15 sind in einem radial äußeren Bereich der Trommelbremse angeordnet, über den sich auch die Stege 9 der Bremsbacken 6,7 erstrecken. Um das Festziehen der Befestigungsschrauben 15 zu ermöglichen, sind die Stege 9 mit Öffnungen 17 zum Durchgang eines Schraubwerkzeugs versehen. Die Schraubenköpfe 18 weisen einen größerenThe brake carrier 1 is by means of four screws 15 attached to the steering knuckle flange 16 of the vehicle. The screws 15 extend parallel to the wheel axle and are from the outside of the vehicle screwed in here. The fastening screws 15 are in a radially outer area arranged the drum brake over which also extend the webs 9 of the brake shoes 6,7. To tighten the fastening screws 15 to enable the webs 9 with openings 17th provided for the passage of a screwing tool. The screw heads 18 have a larger one

Durchmesser auf als die kreisrunden Öffnungen 17, so daß die Befestigungsschrauben 15 in der als Einheit vormontierten Trommelbremse zwischen dem Trägerblech 2 und den Stegen 9 unverlierbar eingeschlossen sind, auch wenn sie noch nicht in den Achsschenkelflansch 16 eingeschraubt sind. Die Schraubenköpfe 18 besitzen eine sechseckige Ausnehmung 19, die zum Eingriff eines Schraubwerkzeugs bestimmt ist. Die Befestigungsschrauben 15 und die dazugehörigen Öffnungen 17 sind in Umfangsrichtung mit gleichmäßigen Abständen und spiegelsymmetrisch angeordnet. Die Öffnungen 17 liegen dabei in Bereichen der Stege 9, die von den beim Bremsen auftretenden Kräften nicht stark beansprucht werden.Diameter than the circular openings 17 so that the mounting screws 15 in the drum brake pre-assembled as a unit between the carrier plate 2 and the webs 9 captive are included, even if they are still not screwed into the knuckle flange 16 are. The screw heads 18 have a hexagonal Recess 19 for engagement by a Is determined. The fastening screws 15 and the associated openings 17th are evenly spaced in the circumferential direction and arranged mirror-symmetrically. The Openings 17 lie in areas of the webs 9 by the forces occurring when braking not be heavily used.

Claims (3)

  1. A drum brake for automotive vehicles, with two brake shoes (6, 7) which each include a stem (9) extending in the direction of the wheel axle and intended for the fixation of the brake shoes (6, 7) and the transmission of the brake actuating forces and the frictional forces, including a brake carrier (1) which carries the brake shoes (6, 7) and an actuating device (12) for the actuation of the brake shoes (6, 7) and is screwed to the steering knuckle (16) of the vehicle by fixing screws (15) which are positioned in a radially external range of the drum brake straddled by the stems (9) of the brake shoes (6, 7), and the stems (9) are formed with at least one opening for a screwing tool to be received therethrough so that the screws (15) which extend substantially in parallel to the wheel axle can be tightened from the external side of the vehicle inwardly,
    characterized in that the external diameter of the screw heads (18) of the fixing screws (15) is larger than the smallest width of the associated opening (17) in the stem (9) of the brake shoe (6, 7), and in that the screw heads (18) include a recess (19) which is intended for accepting a screwing tool and, preferably, is hexagon-shaped.
  2. A drum brake as claimed in claim 1,
    characterized in that the openings (17) which are intended for a screwing tool to be received therethrough are positioned in those areas of the stems (9) which are not subject to heavy stresses due to the forces occurring during braking.
  3. A drum brake as claimed in any one of the preceding claims,
    characterized in that four fixing screws (15) are provided which are disposed in a circumferential direction substantially equally spaced from each other, and in each case two fixing screws (15) are positioned in the area of one brake shoe (6, 7) and substantially symmetrically in relation to the brake shoe.
EP92121146A 1991-12-18 1992-12-11 Drum brake, especially parking brake for motor vehicle Expired - Lifetime EP0547522B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4141701A DE4141701A1 (en) 1991-12-18 1991-12-18 DRUM BRAKE, ESPECIALLY PARKING BRAKE FOR MOTOR VEHICLES
DE4141701 1991-12-18

Publications (3)

Publication Number Publication Date
EP0547522A1 EP0547522A1 (en) 1993-06-23
EP0547522B1 EP0547522B1 (en) 1995-11-22
EP0547522B2 true EP0547522B2 (en) 1999-03-17

Family

ID=6447311

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92121146A Expired - Lifetime EP0547522B2 (en) 1991-12-18 1992-12-11 Drum brake, especially parking brake for motor vehicle

Country Status (2)

Country Link
EP (1) EP0547522B2 (en)
DE (2) DE4141701A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19522631B4 (en) * 1995-06-22 2014-12-18 Continental Teves Ag & Co. Ohg Assembly unit for a motor vehicle drum brake and motor vehicle drum brake with such a mounting unit
DE19712205A1 (en) * 1997-03-24 1998-10-01 Itt Mfg Enterprises Inc Manufacturing process for a drum brake shoe
US6637553B1 (en) 2002-05-29 2003-10-28 Kelelsey-Hayes Company Mounting stud retention system for use in a vehicle drum-in-hat disc brake assembly

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB328390A (en) * 1929-03-18 1930-05-01 Morris Commercial Cars Ltd Brake shoe for self-propelled vehicles
US2928510A (en) * 1956-06-19 1960-03-15 Kay Brunner Steel Products Inc Brake shoe construction
DE1902823U (en) * 1964-03-13 1964-10-22 Pag Presswerk A G BRAKE SHOE FOR DRUM BRAKES WITH A PRESSED FRICTION LINING.
US3850266A (en) * 1973-08-03 1974-11-26 Chrysler Corp Parking brake
DE3402530A1 (en) * 1984-01-26 1985-08-01 Alfred Teves Gmbh, 6000 Frankfurt DRUM BRAKE
FR2578016A1 (en) * 1985-02-28 1986-08-29 Renault Parking drum brake especially for motor vehicle wheels
DE3639774A1 (en) * 1986-11-21 1988-06-01 Siemens Ag Screwing device
DE3910367A1 (en) * 1989-03-31 1990-10-04 Teves Gmbh Alfred INNER JAW BRAKE, ESPECIALLY PARKING BRAKE, IN THE DISC POT

Also Published As

Publication number Publication date
EP0547522B1 (en) 1995-11-22
DE4141701A1 (en) 1993-06-24
DE59204432D1 (en) 1996-01-04
EP0547522A1 (en) 1993-06-23

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